'Black Lives Only Matter When Whites Take Them'

This below is making the rounds. It purports to be a letter from a historian of color on the UC Berkeley history faculty, to his or her colleagues. …
Alex A
Don't want to offend Floyd's family. They are totally innocent in the ongoing BLM charade. But who ever painted the wall depiction of Floyd....... has no style.
@Alex A it is racist agitprop...nothing more.